Textbook Notes (368,848)
Canada (162,204)
Psychology (9,697)
PSYB57H3 (366)
Chapter 2

Chapter 2 Textbook

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Gabriela Ilie

The Brain: An Overview of Structure and Function Chapter 2 Structure of the Brain The Hindbrain and Midbrain Structures within the hindbrain are the most primitive Brain stem (medulla, pons, midbrain) 4.4% total weight of the brain Cerebellum 10.5% of weight Three major structures: o Medulla oblongata transmits information from the spinal cord to the brain and regulates life support functions o Pons neural relay centre and facilitates the crossover of information (left and right), balance and processing of visual and auditory information o Cerebellum coordination of muscular activity, balance Lesions can cause irregular and jerky movements, tremors, impairment of balance and gait Shift attention between visual and auditory stimuli, rhythm Midbrain o Inferior and superior colliculi relaying information between brain regions (cerebellum and forebrain) o Reticular formation helps keep us awake and more alert, sudden arousal to threatattention-grabbing stimulus The Forebrain Thalamus Switching station for sensory information; involved in memory Hypothalamus Regulates basic biological functions (hunger, thirst, temperature, sexual arousal), involved in emotions Hippocampus Involved in learning, memory (long-term), and emotion Amygdala Involved in memory, emotion, and aggression www.notesolution.com
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